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The value of (sin x+ cos x)/(cos^(3)x)...

The value of `(sin x+ cos x)/(cos^(3)x)`

A

`1+tan x+tan^(2)x-tan^(3)x`

B

`1+tan x+ tan^(2)x+tan^(3)x`

C

`1-tanx +tan^(2)x+tn^(3)x`

D

`(1+tan x)sec^(2)x`

Text Solution

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The correct Answer is:
B, D
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